Determine the change in internal energy twice for each of the 3 cases identified below. In your first calculation assume ideal gas behavior, and use appropriate specific heat at the average temperature. In your second calculation, use real substance data.
Case A - Ammonia undergoing a change of state from State 1 (50 kPa, 50 C) to State 2 (500 kPa, 50 C)
Case B - Ammonia undergoing a change of state from State 1 (50 kPa, 50 C) to State 2 (Saturated Vapor, 50 C).
Case C - Ammonia undergoing a change of state from State 1 (50 kPa, 50 C) to State 2 (Saturated Liquid, 50 C).